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2 111 338

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IPC

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Application

96110375/03, 1996-05-21

(22)

Actual filing date

1996-05-21

(45)

Published

1998-05-20

(72)

Inventor

Kovalenko P.V.Gafarov N.A.

(73)

Holder

Volgo-Ural'Skij Nauchno-Issledovatel'Skij I Proektnyj Institut Predprijatija RaoDochernee Predprijatie Rao

GROUTING COMPOSITION FOR INSULATING PERMEABLE FORMATIONS Russian patent published in 1998 - IPC

Abstract RU 2111338 C1

FIELD: oil and gas production. SUBSTANCE: invention relates to grouting mortars for insulation of water influxes under low-permeability collector conditions. Composition contains polymer and solvent. Polymer is copolymer of styrene and maleic anhydride etherified by butanol, its concentration being 4-28 wt.-%. Solvent is methanol. EFFECT: considerably increased efficiency of insulation-repair operations owing to creation of stronger impermeable shield. 1 tbl

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RU 2 111 338 C1

Authors

Kovalenko P.V.

Gafarov N.A.

Dates

1998-05-20—Published

1996-05-21—Filed

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